Going through my search history when this happened, it seems it came out of this "Browser Update"
(here's the start of the site, removing all the gobbly gook that followed it but maybe but don't click on it to be safe?)

I've tried simply adjusting my firefox settings. restoring default but firefox seems to think this is my default.
any ideas on how to remove this and insure it's not doing other bad things to my comptuer?
thanks!